railway DFCCIL MTS 2025 Mock Test Series Quantitative Aptitude Algebra Quadratic Equation

যদি ax2 - 13x + (10a + 1) = 0 সমীকরণের একটি মূল 7/2 হয়, তাহলে মূলের ঘনফলের যোগফল নির্ণয় করুন।

1
659/7
2
559/8
3
659/8
4
559/7
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